The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 2012
Filed:
Nov. 24, 2004
Applicants:
Gianni Collina, Ferrara, IT;
Daniele Evangelisti, Ferrara, IT;
Mario Sacchetti, Ferrara, IT;
Inventors:
Assignee:
Basell Poliolefine Italia s.r.l., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Adducts are provided comprising MgCl, ethanol and a Lewis base (LB), said compounds being present in molar ratios defined by the following formula MgCl.(EtOH)(LB)in which n is from 2 to 6 and p has values satisfying the following equation p/(n+p)≦0.1. The said adducts can be used as precursor in the preparation of high activity ZN catalysts.